C # obtain the local IP address and MAC address

1. Obtain the lan ip address through the host name; try {iphostentry = DNS. gethostentry (txthost. text); // pass the computer name if (iphostentry. aliases. length> 0) {foreach (string alias in iphostentry. aliases) txtip. TEXT = alias;} // obtain the IP address foreach (IPaddress ADDR in iphostentry. addresslist) txtipaddress. TEXT = ADDR. tostring (); // get the IP address} catch {MessageBox. show ("Incorrect host name. ");} 2. Obtain the host name through the lan ip address; try {iphostentry = DNS. gethostbyaddress (txtip. text); // transmit the IP address txthostname. TEXT = iphostentry. hostname. tostring () // get the host name} catch {MessageBox. show ("Incorrect IP address. ");} 3. Obtain the MAC address public static string readmac (string IP) through the lan ip address // you can return the MAC address {string MAC =" "; system. diagnostics. PROCESS p = new system. diagnostics. process (); p. startinfo. filename = "NBTSTAT"; p. startinfo. arguments = "-a" + IP; p. startinfo. useshellexecute = false; p. startinfo. createnowindow = true; p. startinfo. redirectstandardoutput = true; p. start (); string output = P. standardoutput. readtoend (); int Len = output. indexof ("MAC address ="); If (LEN> 0) {MAC = output. substring (LEN + 14, 17);} p. waitforexit (); Return MAC;

}

 

C # obtain the local computer name, IP address, and MAC address

Using system;
Using system. drawing;
Using system. Management;
Using system.net;
Using system. net. Sockets;
Using system. collections;
Using system. componentmodel;
Using system. Windows. forms;
Using system. Data;

Namespace mac_ip_name
{
/// <Summary>
/// Summary of form1.
/// </Summary>
Public class form1: system. Windows. Forms. Form
{
Private system. Windows. Forms. Label label4;
Private system. Windows. Forms. groupbox groupbox1;
Private system. Windows. Forms. textbox txtmac;
Private system. Windows. Forms. textbox txtip;
Private system. Windows. Forms. textbox txtname;
Private system. Windows. Forms. Label lblmac;
Private system. Windows. Forms. Label lblip;
Private system. Windows. Forms. Label lblname;
Private system. Windows. Forms. Button button1;
Private system. Windows. Forms. Button button2;
/// <Summary>
/// Required designer variables.
/// </Summary>
Private System. ComponentModel. Container components = null;

Public Form1 ()
{
//
// Required for Windows Form Designer support
//
InitializeComponent ();

//
// Todo: add Any constructor code after initializecomponent calls
//
}

/// <Summary>
/// Clear all resources in use.
/// </Summary>
Protected override void dispose (bool disposing)
{
If (disposing)
{
If (components! = Null)
{
Components. Dispose ();
}
}
Base. Dispose (disposing );
}

# Region code generated by Windows Form Designer
/// <Summary>
/// The designer supports the required methods-do not use the code editor to modify
/// Content of this method.
/// </Summary>
Private void InitializeComponent ()
{
This. label4 = new System. Windows. Forms. Label ();
This. groupBox1 = new System. Windows. Forms. GroupBox ();
This. button2 = new System. Windows. Forms. Button ();
This.txt MAC = new system. Windows. Forms. Textbox ();
This.txt IP = new system. Windows. Forms. Textbox ();
This.txt name = new system. Windows. Forms. Textbox ();
This. lblmac = new system. Windows. Forms. Label ();
This. lblip = new system. Windows. Forms. Label ();
This. lblname = new system. Windows. Forms. Label ();
This. button1 = new system. Windows. Forms. Button ();
This. groupBox1.SuspendLayout ();
This. SuspendLayout ();
//
// Label4
//
This. label4.AutoSize = true;
This. label4.Font = new System. drawing. font (" _ GB2312", 15F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This. label4.forecolor = system. drawing. color. fromargb (system. byte) (255), (system. byte) (128), (system. byte) (128 )));
This. label4.location = new system. Drawing. Point (49, 16 );
This. label4.name = "label4 ";
This. label4.size = new system. Drawing. Size (245, 26 );
This. label4.tabindex = 7;
This. label4.text = "get the IP address and MAC address of the Local Computer ";
//
// GroupBox1
//
This. groupBox1.Controls. Add (this. button2 );
This.groupBox1.Controls.Add(this.txt Mac );
This.groupBox1.Controls.Add(this.txt Ip );
This.groupBox1.Controls.Add(this.txt Name );
This. groupBox1.Controls. Add (this. lblMac );
This. groupBox1.Controls. Add (this. lblIp );
This. groupBox1.Controls. Add (this. lblName );
This. groupBox1.Controls. Add (this. button1 );
This. groupBox1.Location = new System. Drawing. Point (16, 56 );
This. groupBox1.Name = "groupBox1 ";
This. groupBox1.Size = new System. Drawing. Size (320,208 );
This. groupBox1.TabIndex = 11;
This. groupBox1.TabStop = false;
This. groupBox1.Text = "Get zone ";
//
// Button2
//
This. button2.Font = new System. drawing. font ("", 9F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This. button2.Location = new System. Drawing. Point (184,160 );
This. button2.Name = "button2 ";
This. button2.size = new system. Drawing. Size (88, 32 );
This. button2.tabindex = 18;
This. button2.text = "quit ";
This. button2.click + = new system. eventhandler (this. button2_click );
//
// Txtmac
//
This.txt Mac. backColor = System. drawing. color. fromArgb (System. byte) (224), (System. byte) (224), (System. byte) (224 )));
This.txt Mac. font = new System. drawing. font ("", 9F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This.txt Mac. foreColor = System. drawing. color. fromArgb (System. byte) (255), (System. byte) (128), (System. byte) (0 )));
This.txt Mac. Location = new System. Drawing. Point (128,110 );
This.txt Mac. Name = "txtMac ";
This.txt Mac. ReadOnly = true;
This.txt Mac. Size = new System. Drawing. Size (168, 21 );
This.txt Mac. TabIndex = 17;
This.txt Mac. Text = "";
//
// TxtIp
//
This.txt Ip. backColor = System. drawing. color. fromArgb (System. byte) (224), (System. byte) (224), (System. byte) (224 )));
This.txt Ip. font = new System. drawing. font ("", 9F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This.txt Ip. foreColor = System. drawing. color. fromArgb (System. byte) (255), (System. byte) (128), (System. byte) (0 )));
This.txt Ip. Location = new System. Drawing. Point (128, 70 );
This.txt Ip. Name = "txtIp ";
This.txt Ip. ReadOnly = true;
This.txt Ip. Size = new System. Drawing. Size (168, 21 );
This.txt IP. tabindex = 16;
This.txt IP. Text = "";
//
// Txtname
//
This.txt name. backcolor = system. drawing. color. fromargb (system. byte) (224), (system. byte) (224), (system. byte) (224 )));
This.txt name. font = new system. drawing. font ("", 9f, system. drawing. fontstyle. bold, system. drawing. graphicsunit. point, (system. byte) (134 )));
This.txt name. forecolor = system. drawing. color. fromargb (system. byte) (255), (system. byte) (128), (system. byte) (0 )));
This.txt name. Location = new system. Drawing. Point (128, 30 );
This.txt name. Name = "txtname ";
This.txt name. readonly = true;
This.txt name. size = new system. Drawing. Size (168, 21 );
This.txt name. tabindex = 15;
This.txt name. Text = "";
//
// Lblmac
//
This. lblmac. autosize = true;
This. lblmac. font = new system. drawing. font ("", 12f, system. drawing. fontstyle. bold, system. drawing. graphicsunit. point, (system. byte) (134 )));
This. lblmac. forecolor = system. drawing. color. fromargb (system. byte) (0), (system. byte) (0), (system. byte) (64 )));
This. lblmac. Location = new system. Drawing. Point (32,112 );
This. lblMac. Name = "lblMac ";
This. lblMac. Size = new System. Drawing. Size (88, 22 );
This. lblMac. TabIndex = 14;
This. lblMac. Text = "MAC address :";
//
// LblIp
//
This. lblIp. AutoSize = true;
This. lblip. font = new system. drawing. font ("", 12f, system. drawing. fontstyle. bold, system. drawing. graphicsunit. point, (system. byte) (134 )));
This. lblip. forecolor = system. drawing. color. fromargb (system. byte) (0), (system. byte) (0), (system. byte) (64 )));
This. lblip. Location = new system. Drawing. Point (40, 72 );
This. lblip. Name = "lblip ";
This. lblip. size = new system. Drawing. Size (80, 22 );
This. lblip. tabindex = 13;
This. lblIp. Text = "IP Address :";
//
// LblName
//
This. lblName. AutoSize = true;
This. lblName. font = new System. drawing. font ("", 12F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This. lblName. foreColor = System. drawing. color. fromArgb (System. byte) (0), (System. byte) (0), (System. byte) (64 )));
This. lblname. Location = new system. Drawing. Point (24, 32 );
This. lblname. Name = "lblname ";
This. lblname. size = new system. Drawing. Size (97, 22 );
This. lblname. tabindex = 12;
This. lblname. Text = "computer name :";
//
// Button1
//
This. button1.Font = new System. drawing. font ("", 9F, System. drawing. fontStyle. bold, System. drawing. graphicsUnit. point, (System. byte) (134 )));
This. button1.Location = new System. Drawing. Point (48,160 );
This. button1.Name = "button1 ";
This. button1.Size = new System. Drawing. Size (88, 32 );
This. button1.TabIndex = 11;
This. button1.Text = "click to get ";
This. button1.Click + = new System. EventHandler (this. button#click_1 );
//
// Form1
//
This. AutoScaleBaseSize = new System. Drawing. Size (6, 14 );
This. ClientSize = new System. Drawing. Size (352,285 );
This. Controls. Add (this. groupBox1 );
This. Controls. Add (this. label4 );
This. FormBorderStyle = System. Windows. Forms. FormBorderStyle. Fixed3D;
This. MaximizeBox = false;
This. Name = "Form1 ";
This. StartPosition = System. Windows. Forms. FormStartPosition. CenterScreen;
This. Text = "IP, computer name, MAC query ";
This. groupBox1.ResumeLayout (false );
This. ResumeLayout (false );

}
# Endregion

/// <Summary>
/// Main entry point of the application.
/// </Summary>
[STAThread]
Static void Main ()
{
Application. Run (new Form1 ());
}

Private void button1_Click_1 (object sender, System. EventArgs e)
{
String s = "", mac = "";
//
// Name
//
String hostInfo = Dns. GetHostName ();

//
// IP
System. Net. IPAddress [] addressList = Dns. GetHostByName (Dns. GetHostName (). AddressList;
For (int I = 0; I <addressList. Length; I ++)
{
S + = addressList [I]. ToString ();
}
//
// Mac
//


ManagementClass mc;
MC = new managementclass ("win32_networkadapterconfiguration ");
Managementobjectcollection MOC = mc. getinstances ();
Foreach (managementobject Mo in MoC)
{
If (Mo ["ipenabled"]. tostring () = "true ")
MAC = Mo ["macaddress"]. tostring ();
}


TxtName. Text = hostInfo;
TxtIp. Text = s;
TxtMac. Text = mac;


Button1.Enabled = false;
Button2.Focus ();

}

Private void button2_Click (object sender, System. EventArgs e)
{
Application. Exit ();
}
}
}